Three garage conversion advice.

ritesh

Hello,
I am looking for advice on a block of three garage conversions. I have purchased three garages, all joined together with an aim to convert to garden office. The total dimension of all three garages is 8.5 meters by 5.25 meters and is single skin wall. The plan is to remove the two internal walls and replace the roof with a flat roof. In order to have the flat roof I will need joists of some sort and with the width being over 5 meters I am thinking that the wooden joists over 5 meters will be a problem. How would you proceed and what should I think about to make a safe environment?
Thanks in advance.

Nilrem

Given the size you may be best speaking to an engineer/architect (the current walls may not like some options for the roof)..

My dad had a 2.5 (5x6m approx) width garage drawn up years ago and from memory it had either a certain size of RSJ specified, or wooden beams with something like a 9x3 or 9x4 inch size to avoid the need for pillars (IIRC part of the plan for my dad's garage included double brick pillars spaced on the end walls, to give the supporting beams a resting place, and strengthen the walls).

Remember the materials you use for the roof will affect the size of the supporting joists you require due to the weight etc.

cyclonebri1

You need rsjs, rolled steel joists, to explain.

Not sure where you would be with building reg as this is non residential.

You may also find that when the internal walls are removed, they reduce the lateral support and the external walls my need buttressing.

Get advise not views from here